Revetment



Jan. 17, 1928. A. w. FARNEY REVETME'NT Filed Jan. 31, 1927 2 Sheets-Smeer 2 JNVENToR. d. WM

f/Z@ BY A J .l ATTORNEYS.

Patented Jan. 17, 1,928.

UNITED STATES Asa w. renner, or CLAY COUNTY, Missounr.`

REVETMEN T.

Application flied January s1, 1927. sex-,iai No. 164,322.

This invention relates to dilres for use in changing the direction of the current of a stream and also to prevent erosion of the bank and bottom of a stream, and has as its .fi chief object the production of a new, eicient and inexpensive method ot insuring the proper and permanent connection between certain screen poles forming a part ot the dike and a mat which is sunk to the bottom lo of the stream.

vWith all methods heretofore used, more or less difficulty has been encountered in insuring the permanent fastening ot the screen poles to the mat as it has heretofore been the custom to drive the screen poles through the mat after the latter had been sunk to the bottom of the stream. The poles soon work loose and the current swings them upwardly or breaks them olf and entirely destroys the efficiency of the dike.

vWith the general object named in view, the invention consists incertain novel and useful features of construction as hereinafter described and claimed; and in order `that it may be fully understood reference is to be had to the accompanying drawings, in i which: y i

Figure l is la top plan view 'of a dike constructed in accordance with the invention as it will appear before the mat has been weighted. n

Figure 2 is an enlarged section on the line II-II of Figure l with the `upper part ot' the piling and screen poles broken away. Figure 3 is an end view of the construction bet'ore the mat has been sunk to `illustrate the position of the screen poles.

Figure A is a view similar to Figure 3 ater the mat has been sunk by suitable weights. 40

all ot the figures, A, B, and `C indicate each row of a series of parallel rows of piles 1 `which are permanently driven into the bed ot the stream; The row A indicates the row of piling on the upstream side, and the row Q, the row of piling on the downstream side, 1t

being understood however, that any number ot rows of piling may be utilized according to the force of the current and other natural conditions to be anticipated. The rows of piling are braced longitudinally and laterally respectively by suitable braces 2 and 3 bolted or otherwise securely fastened in posimi tion, the lowermost row of braces being secured as close to the Water line at the time In the said drawings where likereference characters identify corresponding parts in' of constructionas possible. y In orderto y strengthen the structure, a series of diagonal braces l is inclined "downwardlyrom ad jacent the upper ends of piles of row A to adjacent the Water line of the piles of row C. A mat 5 ot the desired area is now woven in position on the surface of the water, the mat at opposite sides of the dike being woven on a barge and ited'off the upstream endfas common in theV art, and the portions of `the mat between the piles l being wolven by men working from platforms supported by the lateral braces 3 as will be readily understood.

In carrying out the invention, a seriesl of' tie poles 6 are laid along the surface of the mat 5 and are tightly secured thereto ad]acent the upstream side of the rowof piles C,so that theforce of the current tending to loosen the tie poles will be resisted by abutment of the poles `against the row ot" piles. The larger ends of al series ot screen poles 7 of sufficient length to reach 'from the bottom of the stream to the uppermostrow ol braces 2, are now driven through the mat as illustrated in Figure 2, said poles being y substantially equally `spaced apart, and each beingnailed and securely wiredto the tie poles 6 as shown at 8. It Vwill be evident that the screen poles while in this position will project some distance above the tops of the piling, and in order tospace the upper ends ot said screen poles to hold them in proper position until the mat has settled tothe bottom of the stream as will hereinafter appear, a series of horizontal spacers 9 are nailed to `each section ot the screen between adjacent lateral rows of piling, it being understood that the connection between each screen pole and the spacers is preferably .by a single nail in order to allow for irregularities in the Y surface of the screen upon the sinking of' the mat-. i i

The mat is now gradually weighted by piling stone 10 or the like thereon, coinmencing with the upstream edge of the mat and working ydownstream as is common in the art. It will be evident that the mat will carry the screen poles down with it, and through the spacers that the screen poles will approximately maintain their proper distances apart. The weightof the mat will force the protruding ends of the screen poles into thebed of the stream and the mat will finally settle permanently on the bottom.. The upper ends of the screen poles then abut llt) 

